Journal
TETRAHEDRON
Volume 69, Issue 1, Pages 190-200Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2012.10.046
Keywords
Triazine; Triphenylamine; Dye-sensitized solar cells
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Funding
- National Basic Research Program of China [2011CB933303, 2011CB808704]
- National Natural Science Foundation of China [21021062, 91022031, 21001063]
- Academician Workstation in Changzhou Trina Solar Energy Co. Ltd., Jiangsu Province
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A new series of triazine-containing donor-pi-acceptor organic sensitizers (TCT-(7-19)) with broad absorptions and high molar extinction coefficients have been designed and synthesized based on our previous work. All these dyes were completely characterized by H-1 NMR, ESI-MS, EA, IR, UV-vis, and cyclic voltammetry. The photovoltaic performances of dye-sensitized solar cells (DSSCs) based on these dyes were investigated. The effect of conjugating length and terminating groups on the absorption properties and photovoltaic performances were discussed. An overall photon-to-electron conversion efficiency of 3.69% was achieved with the DSSC based on the dye TCT-13 (J(sc)=7.76 mA cm(-2), V-oc=691 mV, FF=68.8%) under AM 1.5G illumination (100 mW/cm(2)). (C) 2012 Elsevier Ltd. All rights reserved.
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